Kick it in high gear with added horsepower and torque with the DiabloSport Trinity's dyno-tested performance tunes. Your engine, gas or diesel, deserves to drive at its full potential and the Trinity T-1000 programmer allows you to monitor up-to 45 gauges at once from the high-res, full-color touch screen. 1-year warranty.
Bully Dog Triple Dog GT Tuner (49-State Legal) dials up your ride's performance easier than you can call for pizza delivery. This powerful programmer may be smaller than most cell phones, but it's equipped with innovative features making it a tuner, monitor, gauge and diagnostic device all in one. 1-year warranty.
Get easy plug-n-play performance with the Superchips Flashpaq Tuner. Plugging right into your under-dash OBD-II port, the programmer gives you increased horsepower, torque, and control over your rig. Superchips covers your Flashpaq with a 2-year warranty as well as a 2-year powertrain warranty.
With the DiabloSport inTune I-1000 Tuner, dialing up your ride’s performance is easier than calling up for Chinese takeout. This power programmer may be smaller than most cell phones, but it’s packed with innovative features to tune, log data, and much more. Easy touchscreen interface. 1-year warranty.
The power you want under the hood is a tune away-with Hypertech's high-tech Max Energy Programmer. Get the horsepower, torque and power of your engine that you've been dreaming of, all in one small but mighty tuner. Lifetime Warranty.
Hop up your horsepower with the high-tech SCT X4 Power Flash Programmer (49-State Legal). More advanced than the X3, these performance tuners feature a brilliant LCD screen with real-time data feeds. Pick from pre-loaded tunes or create your own. 1-Year Warranty.
When you stomp on the gas in your V8-fueled street machine, you expect it to go immediately. But, if your ride has Active Fuel Management (AFM), gas pedal mashing that says “go now” translates to “go when AFM feels like it.” Keep your street machine locked and loaded in V8 mode with a Range Technologies Active Fuel Management Disable Device. Simply plug this module into the diagnostic port under the dash and enjoy power and responsiveness on demand. 2-year warranty.
Want to add performance to your daily driver or off-road machine but don’t want the busted knuckles to show for it? Well, then grab a Bully Dog Triple Dog GT Tuner and put down the wrench. Simply plug in this 50-state legal module and enjoy multiple tunes and live sensor data on the brilliant color display. Easy installation. 1-year warranty.
When you goose your auto’s grey matter with a Superchips Cortex Power Programmer, you’ll free up a massive blast of horsepower and torque. Sleeker and more innovative than other power programmers and diesel tuners, the new Cortex Power Programmer delivers up to 35 hp for gas engines and 150 hp for diesel motors. 1-year warranty.
Rip-roaring power is just a click of a button away with the Banks AutoMind Programmer. Packed with custom power, sport, towing and economy modes, it adds the perfect amount of performance for all driving conditions. Opens the door for custom mods to your rev limiter and more. 1-year warranty.
When you tune your power plant with a Jet Power Programmer, you’ll be ready to blast off into a whole new stratosphere of horsepower and torque. These full-throttle power programmers tweak your auto’s ECU to pump out the maximum possible performance while still maintaining safe levels. These performance programmers dish out up to 29 hp and include a 1-year warranty.
The only way to dominate the mean streets is to evolve your ride’s performance with the Edge Evo HT Tuner. Intelligently designed to unleash up to 50hp from gas engines and 150hp from diesels, this car and truck programmer delivers gut-wrenching results for a sweet price. 1-year warranty.
Not all power programmers are engineered for tire-smoking performance. The Hypertech Max Energy E-Con power programmer tweaks your motor’s settings to maximize fuel economy, saving you a bundle of bucks at the pump. And, this power programmer boasts an easy plug-and-play installation. Lifetime Warranty.
SCT has revolutionized how you unlock hidden horsepower with their iTSX Wireless OBD-II Interface. Installing in mere minutes, the wireless tuner plugs into your OBD-II port and you control the tunes and fine-tune key engine parameters through your iPhone, iPad or iPod touch. 1-year warranty.
Link your DiabloSport Predator power programmer to your laptop with the DiabloSport PC Interface. This handy kit comes with a USB cable and 12V power supply—everything you need to upload custom tunes and stream live data to your PC. 2-year warranty.
Engage more than your engine with the Edge EAS Power Switch with Starter Kit. The ultimate monitor accessory, the Edge EAS is a link system that lets you control lights, compressors and other accessories from your Edge CS/CTS Insight, Evolution, and/or Juice with Attitude. 30-day warranty.
High-performance tuning and cutting-edge computing come together with the Superchips VIVID Performance Tuner. This wireless tuner syncs Superchips’ legendary tuning with your Android-powered smartphone/tablet or the Superchips-customized Archos 43 internet tablet computer. 1-year warranty.
Not sure which 2012 GMC Sierra Power Programmers & Performance Tuners are right for you? We have over 5642 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Great product....was tired of the constant back and forth in city driving...easy to use just plug in and drive.............no more shifting back and forth now ...fuel mpg is around 20 mpg(2012 GMC Sierra with 5.3L, 2Wd).....have determined afm is a gimmick...........get high mileage according to dic when coasting, slowing down or going down hill.....again great product, easy to use, highly recommend" —Steve D from Mount Olive, NC bought a Range Active Fuel Management Disable Device for a 2012 GMC Sierra.
"Great product, easy to setup and straightforward. It does have an OBD-II port, and is a little thick but software updates and simple and tech support is helpful. The difference between level 2 to level 4 is obvious and having a k&n 77 series as well as Magnaflow exhaust helps, I notice the low level RPMs are much smoother, especially when that extra passing power is needed." —Angie S from El Paso, TX bought an Edge CTS Evolution Programmer for a 2012 GMC Sierra, 5.3L V8.
"NOTICED MORE TOP END, SMOOTHER SHIFT AT HIGH SPEEDS,NOT MUCH FOR MPG THANKS SHANNA" —Jon L from Williston, ND bought a Bully Dog Triple Dog GT Tuner (49-State Legal) for a 2012 GMC Sierra.
"Best way to get rid of that ridiculous active fuel management feature. I would definitely buy it again. Feels like I am driving a different truck." —Brett H from Austin, AR bought a Range Active Fuel Management Disable Device for a 2012 GMC Sierra.
"Good product no one even knows its in the truck smokes words n dodge all day i" —David G from Alice, TX bought a Superchips Cortex Programmer for a 2012 GMC Sierra, 5.3L V8.
"purchased a Max Energy tuner for my 2012 3500HD with the thought of gaining a little more response at take off. The product works as advertised if you are pretty happy with the overall performance and small increase in fuel mileage, about .5mpg towing at 29000 lb. It only adds a little power and overall performance, not something that will cause problems down the road. It did what I was after. This is the 7 Hypertech tuner I have purchased and not one of the engines have failed. Good Product." —Michael W A from Livingston , TX bought a Hypertech Max Energy Programmer for a 2012 GMC Sierra, 6.6L Duramax.
"Not getting the mpg boost that I expect, about 1-1.5. But the shift firmness did alot for the drivability of the truck, and the shift timing really helped with pickup. It also seems like the diablo helped smooth out the transfer from 4-8 cylinders. This is definitely worth the money truck has faster take off, and easier to drive, and a touch more mpgs. What else can you want from a tuner for a gas truck." —Christian M from Gray Court, SC bought a DiabloSport inTune I-1000 Tuner for a 2012 GMC Sierra.
"I was kind of skeptical about buying a product I haven't heard much about, but it is great. Super easy to install, don't have to worry about voiding my warranty. Truck feels like a hole different truck. No embarrassing noises coming from the motor, no more delays. Awesome product. Would definitely recommend." —Dillan C from Pearl River, LA bought a Range Active Fuel Management Disable Device for a 2012 GMC Sierra.
"Everyone who has the disappointing AFM on their GM trucks and SUVs should get one of these...it is,awesome to have FULL V8 power all the time. Better yet is the 2.5 mpg better fuel economy!!!!" —Troy U from Lancaster, OH bought a Range Active Fuel Management Disable Device for a 2012 GMC Sierra.
"Great little tuner By Diablo. Touch screen is a little finicky but overall I'm very happy with the product. It came with a quick guide but a full manual is available online. I gave it 4 stars based on the fact that I could not find any instruction regarding each tunable option. The Diablo tune already on the unit is quite impressive for a canned tune all the while I gained 3 mpg on city driving. I would definitely getting a Diablew custom tune to make the most of this unit." —Roger T from Hamilton, OH bought a DiabloSport inTune I-1000 Tuner for a 2012 GMC Sierra, 5.3L V8.
"Installed in my 98 z71 with a 350. I have 35s and it let me recalculate my speedmeter. Gave it more throttle response. Well worth the money." —Dillan C from Pearl River, LA bought a Hypertech Max Energy Programmer for a 2012 GMC Sierra, 5.7L V8.